Updating The VMware VCenter License Key Using PowerCLI

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Out of the blue this week, I had a query from a colleague about being able to update the vCenter License key programmatically via PowerShell/PowerCLI. This is something I have done before so luckily I had a script.

The main license update component is here:

$LM = get-view($vCenter.ExtensionData.content.LicenseManager) $LM.AddLicense($vCenter6License,$null) $LAM = get-view($LicenseManager.licenseAssignmentManager) $LAM.UpdateAssignedLicense($vCenter.InstanceUuid,$vCenter6License,$Null) Note: This is not an original script, I found the original script online somewhere. So I definitely do not take the credit!

For a fully working script we can top and tail the above code with the usual variable and connectivity statements for vCenter:

$vCenterServer=[vCenter FQDN] $User=[vCenter Username] $Password=[vCenter Password] $License = [vCenter License Key] $EncryptedPassword = ConvertTo-SecureString -String "$Password" -AsPlainText -Force` $Credential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $User, $EncryptedPassword` Disconnect-VIServer -confirm:$false -ErrorAction SilentlyContinue Write-Host "Connecting to $vCenterServer" $vCenter = Connect-VIServer -Server $vCenterServer -Credential $Credential $LM = get-view($vCenter.ExtensionData.content.LicenseManager) $LM.AddLicense($License,$null) $LAM = get-view($LicenseManager.licenseAssignmentManager) $LAM.UpdateAssignedLicense($vCenter.InstanceUuid,$License,$Null)

And hey presto!

The script can also be found in my PowerShell github repo.

Note:

If you are running PowerShell Core and trying to use the Connect-VIServer command then you may get the following error:

<figure class="blog"> <a href="/images/2019/06/14/screenshot.png"> <img src="/images/2019/06/14/screenshot.png" /> </a> </figure>

If this is the case, you may need to run the following additional PowerCLI command enable this functionality to work:

Set-PowerCLIConfiguration -InvalidCertificateAction:Ignore

Once that change has been made, the script should work.

If it doesn’t please let me know via social media!

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